The purpose of this study is to determine whether inherited thrombophilias (tendency toward blood clotting) increase the risk of failure of the embryo to implant in IVF. The specific condition to be studied is the presence or absence of the Leiden mutation of the Factor V gene.

Transfer of at least 2 fresh embryos of Grade 2 (preembryo with blastomeres of equal size and <=10% cytoplasmic fragmentation) or better

Exclusion Criteria:

Infertility due to uterine anatomic defect

Current use of anticoagulant medication, such as heparin or aspirin

Known presence of any other condition associated with increased risk of thrombosis

Contacts and Locations

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To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00194350